Peter Doocy was on “The Five” to discuss part one of his special, “The Man Who Killed Usama Bin Laden,” plus what to expect in part two, airing tonight at 10p ET.

Doocy worked on this project for a year and a half, even employing a code name for it – “Gatewood.”

Watch Part 1 of 'The Man Who Killed Usama Bin Laden'

He told “The Five” co-hosts that he was set up with former Navy SEAL Robert O’Neill by a third party, and he said that what viewers will see tonight will make it “crystal clear” that O’Neill was the shooter.

Hear more about the special in the video above, and tune in tonight at 10p ET for part two of “The Man Who Killed Usama Bin Laden.”